单词 | chlorite |
释义 | chloriten.1 Mineralogy. A name applied to certain green hydrous silicates of magnesia and alumina occurring in ancient rock-formations, and forming the characteristic ingredients of chlorite slate. The name was taken as a specific one by Werner in 1789. In 1838 Von Kobell showed that Werner's name included more than one species, and restricted it to the hexagonal chlorite of St. Gothard, from which he separated Ripidolite: various other species have since been established, as Penninite, Delessite, Leuchtenbergite, Clinochlore, Chloritoid, etc., and as ‘chlorite’ has thus become a vague popular term, Dana has given the name of Prochlorite to the St. Gothard mineral on which Werner founded the species. ΘΚΠ the world > the earth > minerals > types of mineral > silicates > phyllosilicate > [noun] > chlorite chlorite1794 1601 P. Holland tr. Pliny Hist. World II. 626 Chlorites is a stone of a grasse green colour.] 1794 R. Kirwan Elem. Mineral. 194 Chlorite is found in scales either investing other stones, or heaped together..feels greasy. 1807 Carne in Philos. Trans. (Royal Soc.) 97 293 It is composed of shist, chlorite, and quartz. 1815 R. Bakewell Introd. Geol. (ed. 2) ii. 41 Chlorite..is nearly allied to talc. 1854 H. Miller Schools & Schoolmasters (1857) xiv. 297 It was encrusted over by a thin layer of chlorite, slippery as the mixture of soap and grease that the ship-carpenter spreads over his slips. 1876 D. Page Adv. Text-bk. Geol. (ed. 6) v. 104. Compounds attributive, esp. in chlorite schist n. = chlorite slate n. chlorite slate n. a green slaty rock, consisting of chlorite in foliated plates, often blended with quartz, feldspar, or mica, and associated geologically with gneiss and clay-slate. chlorite spar n. an old name of chloritoid n. ΚΠ 1802 J. Playfair Illustr. Huttonian Theory 12 Micaceous chlorite, hornblend, and siliceous schistus. 1813 H. Davy Elements Agric. Chem. iv. 169 Chlorite Schist..consists of chlorite, a green or gray substance somewhat analogous to mica and feldspar. 1850 C. G. B. Daubeny Introd. Atomic Theory (ed. 2) xii. 411 Hydro~silicates..Example: Chloritespar. 1854 J. D. Dana Syst. Mineral. (ed. 4) 298 Chlorite spar. 1863 C. Lyell Geol. Evid. Antiq. Man xv. 298 Three varieties of granite, besides gneiss, chlorite-slate..serpentine. 1873 Proc. Amer. Philos. Soc. 13 393 Chlorite rocks. This entry has not yet been fully updated (first published 1889; most recently modified version published online March 2022). chloriten.2 Chemistry. A salt of chlorous acid (hydrogen chlorite, H Cl O2); e.g. chlorite of silver, silver chlorite, Ag Cl O2, having the form of yellow crystalline scales, which decompose with explosion. hypochlorite, a salt of hypochlorous acid. ΚΠ 1853 W. Gregory Inorg. Chem. 110 Cl O4, Cl3 O13, and Cl3 O17..they all yield, with potash, mixtures of chlorate and chlorite. 1863–72 H. Watts Dict. Chem. I. 916 Hypochlorites, chlorites, chlorates, and perchlorates of alkali-metal, when strongly heated, are alike converted into chlorides by loss of oxygen. This entry has not yet been fully updated (first published 1889; most recently modified version published online March 2022). < n.11794n.21853 |
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